Check if property has attribute

by

There’s no fast way to retrieve attributes. But code ought to look like this (credit to Aaronaught):

var t = typeof(YourClass);
var pi = t.GetProperty("Id");
var hasIsIdentity = Attribute.IsDefined(pi, typeof(IsIdentity));

If you need to retrieve attribute properties then

var t = typeof(YourClass);
var pi = t.GetProperty("Id");
var attr = (IsIdentity[])pi.GetCustomAttributes(typeof(IsIdentity), false);
if (attr.Length > 0) {
    // Use attr[0], you'll need foreach on attr if MultiUse is true
}

More Related Contents:

  1. Is a LINQ statement faster than a ‘foreach’ loop?
  2. Comparing two byte arrays in .NET
  3. C++ performance vs. Java/C#
  4. Handling warning for possible multiple enumeration of IEnumerable
  5. Prevent .NET Garbage collection for short period of time
  6. Excel Interop – Efficiency and performance
  7. C# ‘is’ operator performance
  8. Is there a performance impact when calling ToList()?
  9. Performance difference for control structures ‘for’ and ‘foreach’ in C#
  10. Performance Tests of Serializations used by WCF Bindings
  11. Performance of static methods vs instance methods
  12. HttpWebRequest is extremely slow!
  13. When is optimization premature? [closed]
  14. Advantages to Using Private Static Methods
  15. c# – Volatile keyword usage vs lock
  16. Is there any performance difference between ++i and i++ in C#?
  17. What’s the difference between encapsulating a private member as a property and defining a property without a private member?
  18. How do I do logging in C# without using 3rd party libraries? [closed]
  19. C# quickest way to shift array
  20. System.Net.WebClient unreasonably slow
  21. How much faster is C++ than C#?
  22. Console.WriteLine slow
  23. How do I measure how long a function is running?
  24. DateTime.DayOfWeek micro optimization
  25. How to read last “n” lines of log file [duplicate]
  26. C# FindAll VS Where Speed
  27. A fast hash function for string in C#
  28. Does any one know of a faster method to do String.Split()?
  29. TableLayoutPanel responds very slowly to events
  30. Is C# really slower than say C++?

Leave a Comment